On Tue, Jan 14, 2025 at 3:40 PM Guenter Roeck <linux@xxxxxxxxxxxx> wrote: > > On Mon, Jan 13, 2025 at 11:07:04PM -0800, Russell Harmon wrote: > > There's at least one drive (MaxDigitalData OOS14000G) such that if it > > receives a large amount of I/O while entering an idle power state will > > first exit idle before responding, including causing SMART temperature > > requests to be delayed. > > > > This causes the drivetemp request to exceed its timeout of 1 second. > > > > Example: > > > > Normal operation > > > > $ time cat /sys/class/hwmon/hwmon9/temp1_input > > 28000 > > cat temp1_input 0.00s user 0.00s system 7% cpu 0.023 total > > $ dd if=/dev/sdep of=/dev/null bs=1M iflag=direct # Generate background load > > $ ./openSeaChest_PowerControl -d /dev/sdep --transitionPower idle_a > > $ time cat /sys/class/hwmon/hwmon9/temp1_input > > 0 > > cat temp1_input 0.00s user 0.00s system 0% cpu 3.154 total > > $ dmesg -t > > sd 11:0:1:0: attempting task abort!scmd(0x00000000ef8da38c), outstanding for 2098 ms & timeout 1000 ms > > sd 11:0:1:0: [sdep] tag#4639 CDB: ATA command pass through(16) 85 08 0e 00 d5 00 01 00 e0 00 4f 00 c2 00 b0 00 > > scsi target11:0:1: handle(0x0009), sas_address(0x4433221105000000), phy(5) > > scsi target11:0:1: enclosure logical id(0x500062b202d7ea80), slot(6) > > scsi target11:0:1: enclosure level(0x0000), connector name( ) > > sd 11:0:1:0: task abort: SUCCESS scmd(0x00000000ef8da38c) > > sd 11:0:1:0: Power-on or device reset occurred > > $ time cat /sys/class/hwmon/hwmon9/temp1_input > > 28000 > > cat /sys/class/hwmon/hwmon9/temp1_input 0.00s user 0.00s system 48% cpu 0.005 total > > > > Please rebase on top of v6.13-rc7 and resend. > When doing so, please drop test results (or send after "---". > Also, the subject should start with "hwmon: (drivetemp) ..." Sent. Thanks!
